DROP_STATISTICS − remove extended statistics
DROP STATISTICS [ IF EXISTS ] name [, ...]
DROP STATISTICS removes statistics object(s) from the database. Only the statistics object's owner, the schema owner, or a superuser can drop a statistics object.
Do not throw an error if the statistics object does not exist. A notice is issued in this case.
The name (optionally schema−qualified) of the statistics object to drop.
To destroy two statistics objects in different schemas, without failing if they don't exist:
There is no DROP STATISTICS command in the SQL standard.
ALTER STATISTICS (ALTER_STATISTICS(7)), CREATE STATISTICS (CREATE_STATISTICS(7))